Eaton 93PM UPS Uninterruptible Power Supply

Overview:

Innovative design delivers
industry-leading power performance

The Eaton® 9390 is a double-conversion uninterruptible power
system (UPS) that resolves all utility power problems and supplies
clean, continuous, uninterruptible power to connected equipment.
Whether you're selecting a UPS for a branch office, manufacturing
floor, medical facility, or data center, there's a 9390 model that
delivers just the right combination of performance and price for
your needs.

Features and Benefits

Transformer-less design

Increased efficiency over transformer-based UPSs

Smaller footprint and higher power density

Lower installation and shipping costs

Flexible Installation

Mount directly next to a wall or even in a corner.

Completely accessible for service and maintenance from
front panel

Top and bottom cable entry

Voltage Options

Conventional 208V and 480V for standard US system
designs

Available 400V for higher efficiency US system designs

Powerware Hot Sync

Easily expand system capacity

Sync parallel configurations without fail-prone control
wires

Advanced Battery Management

Cyclical battery charging increases service life of
batteries, reducing total cost of ownership

Features:

High efficiency options reducing
costs and wasted energy

Energy Saver System

The 9390 has delivered excellent energy efficiency since its
introduction to the market, helping facilities save thousands
in energy costs over traditional UPS designs. Now with the
available Energy Saver System (ESS), the 9390 achieves over
99 percent efficiency no matter how large or small the load.
This additional energy savings is achieved through advanced
power core technology, and continues to provide the load with
maximum protection. Unlike traditional "eco" modes, ESS is
not just a utility bypass.

400 Volt

In addition to conventional (208V and 480V) voltage capabilities,
the 9390 now has the ability to support direct-connect 400/230 Vac
for powering directly to the IT rack. This capability allows for the deployment of a UL/CE rated UPS that can protect and distribute
400/230 Vac directly to IT racks without an additional stepdown
transformer. Some of the efficiencies and benefits of this
alternative voltage powering are:

Higher voltage directly to IT equipment allows it to operate at
higher efficiency (no changes required, as virtually all servers are
rated to operate at up to 240 Vac)

No changes to power distribution equipment since connectors
and circuit breakers already exist with these ratings

End-to-end efficiency of a 400V system design can be up 8%
higher than that of a traditional 480V system.

Scalable architecture meets your current and
future load requirements

The 9390 supports up to 160 kVA to deliver power protection
for small branch offices to large corporate data centers and
communication networks. Up to four equivalent 9390 modules can
be paralleled for additional capacity or redundancy, without having
to utilize a central bypass cabinet. In all paralleling configurations,
each UPS module operates independently yet is completely
synchronized with the others. Parallel UPS modules can provide
N+1, N+2 or greater redundancy.

Powerware Hot Sync technology: The culmination of power reliability

Eaton's patented Powerware Hot Sync® technology enables
multiple UPSs to share the load equally, eliminating the transfer
time when shifting the load from one module to the other. The load
share control algorithms maintain adjustments to variations in the
output power requirements.

When two or more UPSs operate in parallel for capacity and
redundancy, Hot Sync addresses the two primary concerns of
load sharing and selective tripping. To address these concerns
for reliability – the degree of autonomy and the complexity of
implementation – Hot Sync combines digital signal processing and
an advanced control algorithm to provide automatic load sharing
and selective tripping in a parallel system, as well as complete
autonomy of the modules and a skillfully simple implementation.

This two-module system shown below can be configured as 160
kVA N+1 redundant (320 kVA capacity with 36-inch tie cabinet). The
width of this configuration is a compact 164.6 inches.
The 9390 achieves optimum reliability and flexibility with the
following design features:

Unlike other paralleling techniques, there is no system-level single
point of failure

Hot Sync systems are capable of paralleling for both redundancy
and capacity

By using a peer configuration as opposed to a master-slave
configuration, Hot Sync ensures that each module is operating
independently

No added circuitry or components are required to be switched in
to operate in parallel

With thousands of successful systems installed globally, Hot Sync
is a proven technology

The output of multiple UPSs remains in phase so that static
transfer switches connected between the separate distribution
paths may change state seamlessly when necessary

Each parallel unit operates with its own battery string – if any unit
goes offline or is taken down for maintenance, the remaining units
support the load fully with their battery capabilities. If any battery
string fails, the remaining strings continue to support the load –
thus eliminating a key potential single point of system failure.

The 9390 offers the smallest footprint of any UPS in its class—35
to 50 percent smaller than competitive units. Cabling can enter the
UPS from either the top or bottom of the cabinet to provide easier
and flexible installation. And since the compact 9390 cabinet can
be installed against back and side walls, you have more location
options, installation is fast and easy, deployment cost is lower, and
you save valuable data center space.

Weight

At $.30 per pound, the 9390 averages a cross-country freight
savings of over $630. With a transformerless design, Eaton UPS
solutions meet or exceed virtually all floor loading standards. And
with this lower weight, units can be moved without heavy capital
equipment and can fit in all standard freight elevators.

Retrofit applications

The 9390 is perfect for retrofit operations. When an existing UPS is
exceeding capacity but has no room to expand, or when the service
contract is expiring, the existing UPS can be removed and replaced
with a 9390 that offers more power in less space.

Serviceability and accessibility

Being a pre-wired, integrated module, the 9390 saves time and
cost of installation and cabling expenses because of standard top or
bottom entry design. And with front access, the 9390 can be placed
in a corner or against a wall—easily available for service and saving
valuable space.

Performance features to maximize
compatibility

Low input current THD enhances generator compatibility

Electronic devices and UPSs are built with some components that
are non-linear. When voltage is applied to a circuit constructed of
non-linear components, the circuit may not respond linearly (current
may not follow the voltage in a linear manner). These components
may even create frequencies other than the fundamental applied
frequency (60 Hz).

These frequencies (harmonics) occur in odd multiplies of 60 Hz.
The degree of occurrence is called total harmonic distortion (THD).
If the power source can't respond to all frequencies demanded
by the circuit, then further distortion of the applied voltage may
occur—creating more complication. Every UPS produces a level
of harmonics. Unchecked, harmonics can reduce overall power
factor, cause sensitive devices to malfunction, prematurely age
equipment, and cause screens and displays to flicker.

To avoid these negative effects, the 9390 uses a special input
circuit that keeps current THD at less than 4.5% at full load—
without compromising efficiency. As a result, the 9390 transfers
maximum power between the source and protected load and is
exceptionally compatible with multiple power sources, especially
auxiliary generators.

Power factor performance maximizes compatibility and meets high power factor load requirements

Power factor (PF) describes the slight phase shift between voltage
applied to a circuit and current that the circuit draws in response to
the applied voltage. The maximum power factor possible is unity
(1.0), or no phase shift between the voltage applied and the circuit
current response—maximum transfer of power between source
and load. However, in the real world, the UPS must be able to
accept power from and deliver power to circuits that have a wide
range of power factors.

Older or worn equipment often results in lower power factor
readings. Some new servers operate at unity power factor. Lightly
loaded facilities such as brand new data centers, can often show
leading power factor readings.

On output, the ultra high-speed switching pulse width modulation
(PWM) inverter enables the 9390 to provide its full rated power
capability to the load, down to 0.9 leading power factor without
de-rating.

Double-conversion design offers highest available protection

Unlike other commercially available UPS technologies, the doubleconversion
design completely isolates output power from all input
power anomalies and delivers 100% conditioned, perfect sine wave
output—regulating both voltage and frequency, providing protection
from all nine common power problems.

Due to the 9390's built in high-efficiency capability, it operates in a
consistent, efficient status without compromising power protection.
Even when presented with the most severe power problems,
power output remains stable with the 9390. Output voltage THD
is held within two percent of nominal specification for linear loads,
within five percent for non-linear loads—making the 9390 ideal for
supporting equipment that is sensitive to a distorted voltage input
as a result of harmonic loads. In the event of a utility power failure,
there is no delay transferring to backup power.

Advanced battery management optimizes battery
performance and service life

The 9390 UPS offers innovative technologies to maximize the
health and service life of its internal and external batteries:

ABM technology uses a unique three-stage charging technique
that significantly extends battery service life and optimizes
recharge time when compared to traditional trickle charging